Sigma DG DN Lens for Leica Mirrorless Contemporary 16-28mm F2.8 L-mount, Zoom, Wide-Angle, Full-Frame Cameras,

By optimizing the lens configuration through a short flange back and optical design that takes into account the camera's optical correction function, we achieved both high optical performance and a compact size. By employing five FLD glass elements and arranging them precisely, this lens effectively suppresses lateral chromatic aberration and axial chromatic aberration, which are particularly problematic in ultra-wide-angle lenses. Featuring a super multi-layer coating, it achieves excellent performance in backlit situations. L-mount 16-28mm F2.8 Zoom Wide-angle Mirrorless full-frame